A modelling and serializer library for Microsoft Azure IoTHub client applications
Dependents: sht15_remote_monitoring f767zi_mqtt remote_monitoring simplesample_amqp ... more
This library implements a serializer library to be used in projects involving Microsoft Azure IoT Hub connectivity. The code is replicated from https://github.com/Azure/azure-iot-sdks
jsondecoder.c@0:1f9b2707ec7d, 2015-09-15 (annotated)
- Committer:
- AzureIoTClient
- Date:
- Tue Sep 15 21:57:26 2015 -0700
- Revision:
- 0:1f9b2707ec7d
- Child:
- 1:f20abf1e13e9
New release
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AzureIoTClient | 0:1f9b2707ec7d | 1 | // Copyright (c) Microsoft. All rights reserved. |
AzureIoTClient | 0:1f9b2707ec7d | 2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information. |
AzureIoTClient | 0:1f9b2707ec7d | 3 | |
AzureIoTClient | 0:1f9b2707ec7d | 4 | #include <stdlib.h> |
AzureIoTClient | 0:1f9b2707ec7d | 5 | #ifdef _CRTDBG_MAP_ALLOC |
AzureIoTClient | 0:1f9b2707ec7d | 6 | #include <crtdbg.h> |
AzureIoTClient | 0:1f9b2707ec7d | 7 | #endif |
AzureIoTClient | 0:1f9b2707ec7d | 8 | #include "gballoc.h" |
AzureIoTClient | 0:1f9b2707ec7d | 9 | |
AzureIoTClient | 0:1f9b2707ec7d | 10 | #include "jsondecoder.h" |
AzureIoTClient | 0:1f9b2707ec7d | 11 | #include <stdio.h> |
AzureIoTClient | 0:1f9b2707ec7d | 12 | #include <string.h> |
AzureIoTClient | 0:1f9b2707ec7d | 13 | #include <ctype.h> |
AzureIoTClient | 0:1f9b2707ec7d | 14 | #include <stddef.h> |
AzureIoTClient | 0:1f9b2707ec7d | 15 | |
AzureIoTClient | 0:1f9b2707ec7d | 16 | #define IsWhiteSpace(A) (((A) == 0x20) || ((A) == 0x09) || ((A) == 0x0A) || ((A) == 0x0D)) |
AzureIoTClient | 0:1f9b2707ec7d | 17 | |
AzureIoTClient | 0:1f9b2707ec7d | 18 | typedef struct PARSER_STATE_TAG |
AzureIoTClient | 0:1f9b2707ec7d | 19 | { |
AzureIoTClient | 0:1f9b2707ec7d | 20 | char* json; |
AzureIoTClient | 0:1f9b2707ec7d | 21 | } PARSER_STATE; |
AzureIoTClient | 0:1f9b2707ec7d | 22 | |
AzureIoTClient | 0:1f9b2707ec7d | 23 | static JSON_DECODER_RESULT ParseArray(PARSER_STATE* parserState, MULTITREE_HANDLE currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 24 | static JSON_DECODER_RESULT ParseObject(PARSER_STATE* parserState, MULTITREE_HANDLE currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 25 | |
AzureIoTClient | 0:1f9b2707ec7d | 26 | /* Codes_SRS_JSON_DECODER_99_049:[ JSONDecoder shall not allocate new string values for the leafs, but rather point to strings in the original JSON.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 27 | static void NoFreeFunction(void* value) |
AzureIoTClient | 0:1f9b2707ec7d | 28 | { |
AzureIoTClient | 0:1f9b2707ec7d | 29 | (void)value; |
AzureIoTClient | 0:1f9b2707ec7d | 30 | } |
AzureIoTClient | 0:1f9b2707ec7d | 31 | |
AzureIoTClient | 0:1f9b2707ec7d | 32 | static int NOPCloneFunction(void** destination, const void* source) |
AzureIoTClient | 0:1f9b2707ec7d | 33 | { |
AzureIoTClient | 0:1f9b2707ec7d | 34 | *destination = (void**)source; |
AzureIoTClient | 0:1f9b2707ec7d | 35 | return 0; |
AzureIoTClient | 0:1f9b2707ec7d | 36 | } |
AzureIoTClient | 0:1f9b2707ec7d | 37 | |
AzureIoTClient | 0:1f9b2707ec7d | 38 | void SkipWhiteSpaces(PARSER_STATE* parserState) |
AzureIoTClient | 0:1f9b2707ec7d | 39 | { |
AzureIoTClient | 0:1f9b2707ec7d | 40 | while ((*(parserState->json) != '\0') && IsWhiteSpace(*(parserState->json))) |
AzureIoTClient | 0:1f9b2707ec7d | 41 | { |
AzureIoTClient | 0:1f9b2707ec7d | 42 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 43 | } |
AzureIoTClient | 0:1f9b2707ec7d | 44 | } |
AzureIoTClient | 0:1f9b2707ec7d | 45 | |
AzureIoTClient | 0:1f9b2707ec7d | 46 | static JSON_DECODER_RESULT ParseString(PARSER_STATE* parserState, char** stringBegin) |
AzureIoTClient | 0:1f9b2707ec7d | 47 | { |
AzureIoTClient | 0:1f9b2707ec7d | 48 | JSON_DECODER_RESULT result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 49 | *stringBegin = parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 50 | |
AzureIoTClient | 0:1f9b2707ec7d | 51 | /* Codes_SRS_JSON_DECODER_99_028:[ A string begins and ends with quotation marks.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 52 | if (*(parserState->json) != '"') |
AzureIoTClient | 0:1f9b2707ec7d | 53 | { |
AzureIoTClient | 0:1f9b2707ec7d | 54 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 55 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 56 | } |
AzureIoTClient | 0:1f9b2707ec7d | 57 | else |
AzureIoTClient | 0:1f9b2707ec7d | 58 | { |
AzureIoTClient | 0:1f9b2707ec7d | 59 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 60 | while ((*(parserState->json) != '"') && (*(parserState->json) != '\0')) |
AzureIoTClient | 0:1f9b2707ec7d | 61 | { |
AzureIoTClient | 0:1f9b2707ec7d | 62 | /* Codes_SRS_JSON_DECODER_99_030:[ Any character may be escaped.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 63 | /* Codes_SRS_JSON_DECODER_99_033:[ Alternatively, there are two-character sequence escape representations of some popular characters. So, for example, a string containing only a single reverse solidus character may be represented more compactly as "\\".] */ |
AzureIoTClient | 0:1f9b2707ec7d | 64 | if (*(parserState->json) == '\\') |
AzureIoTClient | 0:1f9b2707ec7d | 65 | { |
AzureIoTClient | 0:1f9b2707ec7d | 66 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 67 | if ( |
AzureIoTClient | 0:1f9b2707ec7d | 68 | /* Codes_SRS_JSON_DECODER_99_051:[ %x5C / ; \ reverse solidus U+005C] */ |
AzureIoTClient | 0:1f9b2707ec7d | 69 | (*parserState->json == '\\') || |
AzureIoTClient | 0:1f9b2707ec7d | 70 | /* Codes_SRS_JSON_DECODER_99_050:[ %x22 / ; " quotation mark U+0022] */ |
AzureIoTClient | 0:1f9b2707ec7d | 71 | (*parserState->json == '"') || |
AzureIoTClient | 0:1f9b2707ec7d | 72 | /* Codes_SRS_JSON_DECODER_99_052:[ %x2F / ; / solidus U+002F] */ |
AzureIoTClient | 0:1f9b2707ec7d | 73 | (*parserState->json == '/') || |
AzureIoTClient | 0:1f9b2707ec7d | 74 | /* Codes_SRS_JSON_DECODER_99_053:[ %x62 / ; b backspace U+0008] */ |
AzureIoTClient | 0:1f9b2707ec7d | 75 | (*parserState->json == 'b') || |
AzureIoTClient | 0:1f9b2707ec7d | 76 | /* Codes_SRS_JSON_DECODER_99_054:[ %x66 / ; f form feed U+000C] */ |
AzureIoTClient | 0:1f9b2707ec7d | 77 | (*parserState->json == 'f') || |
AzureIoTClient | 0:1f9b2707ec7d | 78 | /* Codes_SRS_JSON_DECODER_99_055:[ %x6E / ; n line feed U+000A] */ |
AzureIoTClient | 0:1f9b2707ec7d | 79 | (*parserState->json == 'n') || |
AzureIoTClient | 0:1f9b2707ec7d | 80 | /* Codes_SRS_JSON_DECODER_99_056:[ %x72 / ; r carriage return U+000D] */ |
AzureIoTClient | 0:1f9b2707ec7d | 81 | (*parserState->json == 'r') || |
AzureIoTClient | 0:1f9b2707ec7d | 82 | /* Codes_SRS_JSON_DECODER_99_057:[ %x74 / ; t tab U+0009] */ |
AzureIoTClient | 0:1f9b2707ec7d | 83 | (*parserState->json == 't')) |
AzureIoTClient | 0:1f9b2707ec7d | 84 | { |
AzureIoTClient | 0:1f9b2707ec7d | 85 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 86 | } |
AzureIoTClient | 0:1f9b2707ec7d | 87 | else |
AzureIoTClient | 0:1f9b2707ec7d | 88 | { |
AzureIoTClient | 0:1f9b2707ec7d | 89 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 90 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 91 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 92 | } |
AzureIoTClient | 0:1f9b2707ec7d | 93 | } |
AzureIoTClient | 0:1f9b2707ec7d | 94 | else |
AzureIoTClient | 0:1f9b2707ec7d | 95 | { |
AzureIoTClient | 0:1f9b2707ec7d | 96 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 97 | } |
AzureIoTClient | 0:1f9b2707ec7d | 98 | } |
AzureIoTClient | 0:1f9b2707ec7d | 99 | |
AzureIoTClient | 0:1f9b2707ec7d | 100 | if (*(parserState->json) != '"') |
AzureIoTClient | 0:1f9b2707ec7d | 101 | { |
AzureIoTClient | 0:1f9b2707ec7d | 102 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 103 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 104 | } |
AzureIoTClient | 0:1f9b2707ec7d | 105 | else |
AzureIoTClient | 0:1f9b2707ec7d | 106 | { |
AzureIoTClient | 0:1f9b2707ec7d | 107 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 108 | result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 109 | } |
AzureIoTClient | 0:1f9b2707ec7d | 110 | } |
AzureIoTClient | 0:1f9b2707ec7d | 111 | |
AzureIoTClient | 0:1f9b2707ec7d | 112 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 113 | } |
AzureIoTClient | 0:1f9b2707ec7d | 114 | |
AzureIoTClient | 0:1f9b2707ec7d | 115 | static JSON_DECODER_RESULT ParseNumber(PARSER_STATE* parserState) |
AzureIoTClient | 0:1f9b2707ec7d | 116 | { |
AzureIoTClient | 0:1f9b2707ec7d | 117 | JSON_DECODER_RESULT result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 118 | int digitCount = 0; |
AzureIoTClient | 0:1f9b2707ec7d | 119 | |
AzureIoTClient | 0:1f9b2707ec7d | 120 | if (*(parserState->json) == '-') |
AzureIoTClient | 0:1f9b2707ec7d | 121 | { |
AzureIoTClient | 0:1f9b2707ec7d | 122 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 123 | } |
AzureIoTClient | 0:1f9b2707ec7d | 124 | |
AzureIoTClient | 0:1f9b2707ec7d | 125 | /* Codes_SRS_JSON_DECODER_99_043:[ A number contains an integer component that may be prefixed with an optional minus sign, which may be followed by a fraction part and/or an exponent part.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 126 | while (*(parserState->json) != '\0') |
AzureIoTClient | 0:1f9b2707ec7d | 127 | { |
AzureIoTClient | 0:1f9b2707ec7d | 128 | /* Codes_SRS_JSON_DECODER_99_044:[ Octal and hex forms are not allowed.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 129 | if (isdigit(*(parserState->json))) |
AzureIoTClient | 0:1f9b2707ec7d | 130 | { |
AzureIoTClient | 0:1f9b2707ec7d | 131 | digitCount++; |
AzureIoTClient | 0:1f9b2707ec7d | 132 | /* simply continue */ |
AzureIoTClient | 0:1f9b2707ec7d | 133 | } |
AzureIoTClient | 0:1f9b2707ec7d | 134 | else |
AzureIoTClient | 0:1f9b2707ec7d | 135 | { |
AzureIoTClient | 0:1f9b2707ec7d | 136 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 137 | } |
AzureIoTClient | 0:1f9b2707ec7d | 138 | |
AzureIoTClient | 0:1f9b2707ec7d | 139 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 140 | } |
AzureIoTClient | 0:1f9b2707ec7d | 141 | |
AzureIoTClient | 0:1f9b2707ec7d | 142 | if ((digitCount == 0) || |
AzureIoTClient | 0:1f9b2707ec7d | 143 | /* Codes_SRS_JSON_DECODER_99_045:[ Leading zeros are not allowed.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 144 | ((digitCount > 1) && *(parserState->json - digitCount) == '0')) |
AzureIoTClient | 0:1f9b2707ec7d | 145 | { |
AzureIoTClient | 0:1f9b2707ec7d | 146 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 147 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 148 | } |
AzureIoTClient | 0:1f9b2707ec7d | 149 | else |
AzureIoTClient | 0:1f9b2707ec7d | 150 | { |
AzureIoTClient | 0:1f9b2707ec7d | 151 | /* Codes_SRS_JSON_DECODER_99_046:[ A fraction part is a decimal point followed by one or more digits.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 152 | if (*(parserState->json) == '.') |
AzureIoTClient | 0:1f9b2707ec7d | 153 | { |
AzureIoTClient | 0:1f9b2707ec7d | 154 | /* optional fractional part */ |
AzureIoTClient | 0:1f9b2707ec7d | 155 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 156 | digitCount = 0; |
AzureIoTClient | 0:1f9b2707ec7d | 157 | |
AzureIoTClient | 0:1f9b2707ec7d | 158 | while (*(parserState->json) != '\0') |
AzureIoTClient | 0:1f9b2707ec7d | 159 | { |
AzureIoTClient | 0:1f9b2707ec7d | 160 | /* Codes_SRS_JSON_DECODER_99_044:[ Octal and hex forms are not allowed.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 161 | if (isdigit(*(parserState->json))) |
AzureIoTClient | 0:1f9b2707ec7d | 162 | { |
AzureIoTClient | 0:1f9b2707ec7d | 163 | digitCount++; |
AzureIoTClient | 0:1f9b2707ec7d | 164 | /* simply continue */ |
AzureIoTClient | 0:1f9b2707ec7d | 165 | } |
AzureIoTClient | 0:1f9b2707ec7d | 166 | else |
AzureIoTClient | 0:1f9b2707ec7d | 167 | { |
AzureIoTClient | 0:1f9b2707ec7d | 168 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 169 | } |
AzureIoTClient | 0:1f9b2707ec7d | 170 | |
AzureIoTClient | 0:1f9b2707ec7d | 171 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 172 | } |
AzureIoTClient | 0:1f9b2707ec7d | 173 | |
AzureIoTClient | 0:1f9b2707ec7d | 174 | if (digitCount == 0) |
AzureIoTClient | 0:1f9b2707ec7d | 175 | { |
AzureIoTClient | 0:1f9b2707ec7d | 176 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 177 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 178 | } |
AzureIoTClient | 0:1f9b2707ec7d | 179 | } |
AzureIoTClient | 0:1f9b2707ec7d | 180 | |
AzureIoTClient | 0:1f9b2707ec7d | 181 | /* Codes_SRS_JSON_DECODER_99_047:[ An exponent part begins with the letter E in upper or lowercase, which may be followed by a plus or minus sign.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 182 | if ((*(parserState->json) == 'e') || (*(parserState->json) == 'E')) |
AzureIoTClient | 0:1f9b2707ec7d | 183 | { |
AzureIoTClient | 0:1f9b2707ec7d | 184 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 185 | |
AzureIoTClient | 0:1f9b2707ec7d | 186 | /* optional sign */ |
AzureIoTClient | 0:1f9b2707ec7d | 187 | if ((*(parserState->json) == '-') || (*(parserState->json) == '+')) |
AzureIoTClient | 0:1f9b2707ec7d | 188 | { |
AzureIoTClient | 0:1f9b2707ec7d | 189 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 190 | } |
AzureIoTClient | 0:1f9b2707ec7d | 191 | |
AzureIoTClient | 0:1f9b2707ec7d | 192 | digitCount = 0; |
AzureIoTClient | 0:1f9b2707ec7d | 193 | |
AzureIoTClient | 0:1f9b2707ec7d | 194 | /* Codes_SRS_JSON_DECODER_99_048:[ The E and optional sign are followed by one or more digits.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 195 | while (*(parserState->json) != '\0') |
AzureIoTClient | 0:1f9b2707ec7d | 196 | { |
AzureIoTClient | 0:1f9b2707ec7d | 197 | /* Codes_SRS_JSON_DECODER_99_044:[ Octal and hex forms are not allowed.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 198 | if (isdigit(*(parserState->json))) |
AzureIoTClient | 0:1f9b2707ec7d | 199 | { |
AzureIoTClient | 0:1f9b2707ec7d | 200 | digitCount++; |
AzureIoTClient | 0:1f9b2707ec7d | 201 | /* simply continue */ |
AzureIoTClient | 0:1f9b2707ec7d | 202 | } |
AzureIoTClient | 0:1f9b2707ec7d | 203 | else |
AzureIoTClient | 0:1f9b2707ec7d | 204 | { |
AzureIoTClient | 0:1f9b2707ec7d | 205 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 206 | } |
AzureIoTClient | 0:1f9b2707ec7d | 207 | |
AzureIoTClient | 0:1f9b2707ec7d | 208 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 209 | } |
AzureIoTClient | 0:1f9b2707ec7d | 210 | |
AzureIoTClient | 0:1f9b2707ec7d | 211 | if (digitCount == 0) |
AzureIoTClient | 0:1f9b2707ec7d | 212 | { |
AzureIoTClient | 0:1f9b2707ec7d | 213 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 214 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 215 | } |
AzureIoTClient | 0:1f9b2707ec7d | 216 | } |
AzureIoTClient | 0:1f9b2707ec7d | 217 | } |
AzureIoTClient | 0:1f9b2707ec7d | 218 | |
AzureIoTClient | 0:1f9b2707ec7d | 219 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 220 | } |
AzureIoTClient | 0:1f9b2707ec7d | 221 | |
AzureIoTClient | 0:1f9b2707ec7d | 222 | static JSON_DECODER_RESULT ParseValue(PARSER_STATE* parserState, MULTITREE_HANDLE currentNode, char** stringBegin) |
AzureIoTClient | 0:1f9b2707ec7d | 223 | { |
AzureIoTClient | 0:1f9b2707ec7d | 224 | JSON_DECODER_RESULT result; |
AzureIoTClient | 0:1f9b2707ec7d | 225 | |
AzureIoTClient | 0:1f9b2707ec7d | 226 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 227 | |
AzureIoTClient | 0:1f9b2707ec7d | 228 | if (*(parserState->json) == '"') |
AzureIoTClient | 0:1f9b2707ec7d | 229 | { |
AzureIoTClient | 0:1f9b2707ec7d | 230 | result = ParseString(parserState, stringBegin); |
AzureIoTClient | 0:1f9b2707ec7d | 231 | } |
AzureIoTClient | 0:1f9b2707ec7d | 232 | /* Codes_SRS_JSON_DECODER_99_018:[ A JSON value MUST be an object, array, number, or string, or one of the following three literal names: false null true] */ |
AzureIoTClient | 0:1f9b2707ec7d | 233 | /* Codes_SRS_JSON_DECODER_99_019:[ The literal names MUST be lowercase.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 234 | /* Codes_SRS_JSON_DECODER_99_020:[ No other literal names are allowed.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 235 | else if (strncmp(parserState->json, "false", 5) == 0) |
AzureIoTClient | 0:1f9b2707ec7d | 236 | { |
AzureIoTClient | 0:1f9b2707ec7d | 237 | *stringBegin = parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 238 | parserState->json += 5; |
AzureIoTClient | 0:1f9b2707ec7d | 239 | result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 240 | } |
AzureIoTClient | 0:1f9b2707ec7d | 241 | else if (strncmp(parserState->json, "true", 4) == 0) |
AzureIoTClient | 0:1f9b2707ec7d | 242 | { |
AzureIoTClient | 0:1f9b2707ec7d | 243 | *stringBegin = parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 244 | parserState->json += 4; |
AzureIoTClient | 0:1f9b2707ec7d | 245 | result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 246 | } |
AzureIoTClient | 0:1f9b2707ec7d | 247 | else if (strncmp(parserState->json, "null", 4) == 0) |
AzureIoTClient | 0:1f9b2707ec7d | 248 | { |
AzureIoTClient | 0:1f9b2707ec7d | 249 | *stringBegin = parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 250 | parserState->json += 4; |
AzureIoTClient | 0:1f9b2707ec7d | 251 | result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 252 | } |
AzureIoTClient | 0:1f9b2707ec7d | 253 | /* Tests_SRS_JSON_DECODER_99_018:[ A JSON value MUST be an object, array, number, or string, or one of the following three literal names: false null true] */ |
AzureIoTClient | 0:1f9b2707ec7d | 254 | else if (*(parserState->json) == '[') |
AzureIoTClient | 0:1f9b2707ec7d | 255 | { |
AzureIoTClient | 0:1f9b2707ec7d | 256 | result = ParseArray(parserState, currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 257 | *stringBegin = NULL; |
AzureIoTClient | 0:1f9b2707ec7d | 258 | } |
AzureIoTClient | 0:1f9b2707ec7d | 259 | else if (*(parserState->json) == '{') |
AzureIoTClient | 0:1f9b2707ec7d | 260 | { |
AzureIoTClient | 0:1f9b2707ec7d | 261 | result = ParseObject(parserState, currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 262 | *stringBegin = NULL; |
AzureIoTClient | 0:1f9b2707ec7d | 263 | } |
AzureIoTClient | 0:1f9b2707ec7d | 264 | else if ( |
AzureIoTClient | 0:1f9b2707ec7d | 265 | ( |
AzureIoTClient | 0:1f9b2707ec7d | 266 | isdigit(*(parserState->json)) |
AzureIoTClient | 0:1f9b2707ec7d | 267 | ) |
AzureIoTClient | 0:1f9b2707ec7d | 268 | || (*(parserState->json) == '-')) |
AzureIoTClient | 0:1f9b2707ec7d | 269 | { |
AzureIoTClient | 0:1f9b2707ec7d | 270 | *stringBegin = parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 271 | result = ParseNumber(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 272 | } |
AzureIoTClient | 0:1f9b2707ec7d | 273 | else |
AzureIoTClient | 0:1f9b2707ec7d | 274 | { |
AzureIoTClient | 0:1f9b2707ec7d | 275 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 276 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 277 | } |
AzureIoTClient | 0:1f9b2707ec7d | 278 | |
AzureIoTClient | 0:1f9b2707ec7d | 279 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 280 | } |
AzureIoTClient | 0:1f9b2707ec7d | 281 | |
AzureIoTClient | 0:1f9b2707ec7d | 282 | static JSON_DECODER_RESULT ParseColon(PARSER_STATE* parserState) |
AzureIoTClient | 0:1f9b2707ec7d | 283 | { |
AzureIoTClient | 0:1f9b2707ec7d | 284 | JSON_DECODER_RESULT result; |
AzureIoTClient | 0:1f9b2707ec7d | 285 | |
AzureIoTClient | 0:1f9b2707ec7d | 286 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 287 | /* Codes_SRS_JSON_DECODER_99_023:[ A single colon comes after each name, separating the name from the value.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 288 | if (*(parserState->json) != ':') |
AzureIoTClient | 0:1f9b2707ec7d | 289 | { |
AzureIoTClient | 0:1f9b2707ec7d | 290 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 291 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 292 | } |
AzureIoTClient | 0:1f9b2707ec7d | 293 | else |
AzureIoTClient | 0:1f9b2707ec7d | 294 | { |
AzureIoTClient | 0:1f9b2707ec7d | 295 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 296 | result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 297 | } |
AzureIoTClient | 0:1f9b2707ec7d | 298 | |
AzureIoTClient | 0:1f9b2707ec7d | 299 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 300 | } |
AzureIoTClient | 0:1f9b2707ec7d | 301 | |
AzureIoTClient | 0:1f9b2707ec7d | 302 | static JSON_DECODER_RESULT ParseOpenCurly(PARSER_STATE* parserState) |
AzureIoTClient | 0:1f9b2707ec7d | 303 | { |
AzureIoTClient | 0:1f9b2707ec7d | 304 | JSON_DECODER_RESULT result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 305 | |
AzureIoTClient | 0:1f9b2707ec7d | 306 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 307 | |
AzureIoTClient | 0:1f9b2707ec7d | 308 | /* Codes_SRS_JSON_DECODER_99_021:[ An object structure is represented as a pair of curly brackets surrounding zero or more name/value pairs (or members).] */ |
AzureIoTClient | 0:1f9b2707ec7d | 309 | if (*(parserState->json) != '{') |
AzureIoTClient | 0:1f9b2707ec7d | 310 | { |
AzureIoTClient | 0:1f9b2707ec7d | 311 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 312 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 313 | } |
AzureIoTClient | 0:1f9b2707ec7d | 314 | else |
AzureIoTClient | 0:1f9b2707ec7d | 315 | { |
AzureIoTClient | 0:1f9b2707ec7d | 316 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 317 | result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 318 | } |
AzureIoTClient | 0:1f9b2707ec7d | 319 | |
AzureIoTClient | 0:1f9b2707ec7d | 320 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 321 | } |
AzureIoTClient | 0:1f9b2707ec7d | 322 | |
AzureIoTClient | 0:1f9b2707ec7d | 323 | static JSON_DECODER_RESULT ParseNameValuePair(PARSER_STATE* parserState, MULTITREE_HANDLE currentNode) |
AzureIoTClient | 0:1f9b2707ec7d | 324 | { |
AzureIoTClient | 0:1f9b2707ec7d | 325 | JSON_DECODER_RESULT result; |
AzureIoTClient | 0:1f9b2707ec7d | 326 | char* memberNameBegin; |
AzureIoTClient | 0:1f9b2707ec7d | 327 | |
AzureIoTClient | 0:1f9b2707ec7d | 328 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 329 | |
AzureIoTClient | 0:1f9b2707ec7d | 330 | /* Codes_SRS_JSON_DECODER_99_022:[ A name is a string.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 331 | result = ParseString(parserState, &memberNameBegin); |
AzureIoTClient | 0:1f9b2707ec7d | 332 | if (result == JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 333 | { |
AzureIoTClient | 0:1f9b2707ec7d | 334 | char* valueBegin; |
AzureIoTClient | 0:1f9b2707ec7d | 335 | MULTITREE_HANDLE childNode; |
AzureIoTClient | 0:1f9b2707ec7d | 336 | *(parserState->json - 1) = 0; |
AzureIoTClient | 0:1f9b2707ec7d | 337 | |
AzureIoTClient | 0:1f9b2707ec7d | 338 | result = ParseColon(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 339 | if (result == JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 340 | { |
AzureIoTClient | 0:1f9b2707ec7d | 341 | /* Codes_SRS_JSON_DECODER_99_025:[ The names within an object SHOULD be unique.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 342 | /* Multi Tree takes care of not having 2 children with the same name */ |
AzureIoTClient | 0:1f9b2707ec7d | 343 | /* Codes_SRS_JSON_DECODER_99_002:[ JSONDecoder_JSON_To_MultiTree shall use the MultiTree APIs to create the multi tree and add leafs to the multi tree.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 344 | /* Codes_SRS_JSON_DECODER_99_003:[ When a JSON element is decoded from the JSON object then a leaf shall be added to the MultiTree.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 345 | /* Codes_SRS_JSON_DECODER_99_004:[ The leaf node name in the multi tree shall be the JSON element name.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 346 | if (MultiTree_AddChild(currentNode, memberNameBegin + 1, &childNode) != MULTITREE_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 347 | { |
AzureIoTClient | 0:1f9b2707ec7d | 348 | /* Codes_SRS_JSON_DECODER_99_038:[ If any MultiTree API fails, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_MULTITREE_FAILED.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 349 | result = JSON_DECODER_MULTITREE_FAILED; |
AzureIoTClient | 0:1f9b2707ec7d | 350 | } |
AzureIoTClient | 0:1f9b2707ec7d | 351 | else |
AzureIoTClient | 0:1f9b2707ec7d | 352 | { |
AzureIoTClient | 0:1f9b2707ec7d | 353 | result = ParseValue(parserState, childNode, &valueBegin); |
AzureIoTClient | 0:1f9b2707ec7d | 354 | if ((result == JSON_DECODER_OK) && (valueBegin != NULL)) |
AzureIoTClient | 0:1f9b2707ec7d | 355 | { |
AzureIoTClient | 0:1f9b2707ec7d | 356 | /* Codes_SRS_JSON_DECODER_99_005:[ The leaf node added in the multi tree shall have the value the string value of the JSON element as parsed from the JSON object.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 357 | if (MultiTree_SetValue(childNode, valueBegin) != MULTITREE_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 358 | { |
AzureIoTClient | 0:1f9b2707ec7d | 359 | /* Codes_SRS_JSON_DECODER_99_038:[ If any MultiTree API fails, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_MULTITREE_FAILED.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 360 | result = JSON_DECODER_MULTITREE_FAILED; |
AzureIoTClient | 0:1f9b2707ec7d | 361 | } |
AzureIoTClient | 0:1f9b2707ec7d | 362 | } |
AzureIoTClient | 0:1f9b2707ec7d | 363 | } |
AzureIoTClient | 0:1f9b2707ec7d | 364 | } |
AzureIoTClient | 0:1f9b2707ec7d | 365 | } |
AzureIoTClient | 0:1f9b2707ec7d | 366 | |
AzureIoTClient | 0:1f9b2707ec7d | 367 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 368 | } |
AzureIoTClient | 0:1f9b2707ec7d | 369 | |
AzureIoTClient | 0:1f9b2707ec7d | 370 | static JSON_DECODER_RESULT ParseObject(PARSER_STATE* parserState, MULTITREE_HANDLE currentNode) |
AzureIoTClient | 0:1f9b2707ec7d | 371 | { |
AzureIoTClient | 0:1f9b2707ec7d | 372 | JSON_DECODER_RESULT result = ParseOpenCurly(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 373 | if (result == JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 374 | { |
AzureIoTClient | 0:1f9b2707ec7d | 375 | char jsonChar; |
AzureIoTClient | 0:1f9b2707ec7d | 376 | |
AzureIoTClient | 0:1f9b2707ec7d | 377 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 378 | |
AzureIoTClient | 0:1f9b2707ec7d | 379 | jsonChar = *(parserState->json); |
AzureIoTClient | 0:1f9b2707ec7d | 380 | while ((jsonChar != '}') && (jsonChar != '\0')) |
AzureIoTClient | 0:1f9b2707ec7d | 381 | { |
AzureIoTClient | 0:1f9b2707ec7d | 382 | char* valueEnd; |
AzureIoTClient | 0:1f9b2707ec7d | 383 | |
AzureIoTClient | 0:1f9b2707ec7d | 384 | /* decode each value */ |
AzureIoTClient | 0:1f9b2707ec7d | 385 | result = ParseNameValuePair(parserState, currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 386 | if (result != JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 387 | { |
AzureIoTClient | 0:1f9b2707ec7d | 388 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 389 | } |
AzureIoTClient | 0:1f9b2707ec7d | 390 | |
AzureIoTClient | 0:1f9b2707ec7d | 391 | valueEnd = parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 392 | |
AzureIoTClient | 0:1f9b2707ec7d | 393 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 394 | jsonChar = *(parserState->json); |
AzureIoTClient | 0:1f9b2707ec7d | 395 | *valueEnd = 0; |
AzureIoTClient | 0:1f9b2707ec7d | 396 | |
AzureIoTClient | 0:1f9b2707ec7d | 397 | /* Codes_SRS_JSON_DECODER_99_024:[ A single comma separates a value from a following name.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 398 | if (jsonChar == ',') |
AzureIoTClient | 0:1f9b2707ec7d | 399 | { |
AzureIoTClient | 0:1f9b2707ec7d | 400 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 401 | /* get the next name/value pair */ |
AzureIoTClient | 0:1f9b2707ec7d | 402 | } |
AzureIoTClient | 0:1f9b2707ec7d | 403 | } |
AzureIoTClient | 0:1f9b2707ec7d | 404 | |
AzureIoTClient | 0:1f9b2707ec7d | 405 | if (result != JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 406 | { |
AzureIoTClient | 0:1f9b2707ec7d | 407 | /* already have error */ |
AzureIoTClient | 0:1f9b2707ec7d | 408 | } |
AzureIoTClient | 0:1f9b2707ec7d | 409 | else |
AzureIoTClient | 0:1f9b2707ec7d | 410 | { |
AzureIoTClient | 0:1f9b2707ec7d | 411 | if (jsonChar != '}') |
AzureIoTClient | 0:1f9b2707ec7d | 412 | { |
AzureIoTClient | 0:1f9b2707ec7d | 413 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 414 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 415 | } |
AzureIoTClient | 0:1f9b2707ec7d | 416 | else |
AzureIoTClient | 0:1f9b2707ec7d | 417 | { |
AzureIoTClient | 0:1f9b2707ec7d | 418 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 419 | } |
AzureIoTClient | 0:1f9b2707ec7d | 420 | } |
AzureIoTClient | 0:1f9b2707ec7d | 421 | } |
AzureIoTClient | 0:1f9b2707ec7d | 422 | |
AzureIoTClient | 0:1f9b2707ec7d | 423 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 424 | } |
AzureIoTClient | 0:1f9b2707ec7d | 425 | |
AzureIoTClient | 0:1f9b2707ec7d | 426 | static JSON_DECODER_RESULT ParseArray(PARSER_STATE* parserState, MULTITREE_HANDLE currentNode) |
AzureIoTClient | 0:1f9b2707ec7d | 427 | { |
AzureIoTClient | 0:1f9b2707ec7d | 428 | JSON_DECODER_RESULT result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 429 | |
AzureIoTClient | 0:1f9b2707ec7d | 430 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 431 | |
AzureIoTClient | 0:1f9b2707ec7d | 432 | /* Codes_SRS_JSON_DECODER_99_026:[ An array structure is represented as square brackets surrounding zero or more values (or elements).] */ |
AzureIoTClient | 0:1f9b2707ec7d | 433 | if (*(parserState->json) != '[') |
AzureIoTClient | 0:1f9b2707ec7d | 434 | { |
AzureIoTClient | 0:1f9b2707ec7d | 435 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 436 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 437 | } |
AzureIoTClient | 0:1f9b2707ec7d | 438 | else |
AzureIoTClient | 0:1f9b2707ec7d | 439 | { |
AzureIoTClient | 0:1f9b2707ec7d | 440 | char* stringBegin; |
AzureIoTClient | 0:1f9b2707ec7d | 441 | char jsonChar; |
AzureIoTClient | 0:1f9b2707ec7d | 442 | int arrayIndex = 0; |
AzureIoTClient | 0:1f9b2707ec7d | 443 | result = JSON_DECODER_OK; |
AzureIoTClient | 0:1f9b2707ec7d | 444 | |
AzureIoTClient | 0:1f9b2707ec7d | 445 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 446 | |
AzureIoTClient | 0:1f9b2707ec7d | 447 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 448 | |
AzureIoTClient | 0:1f9b2707ec7d | 449 | jsonChar = *parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 450 | while ((jsonChar != ']') && (jsonChar != '\0')) |
AzureIoTClient | 0:1f9b2707ec7d | 451 | { |
AzureIoTClient | 0:1f9b2707ec7d | 452 | char arrayIndexStr[22]; |
AzureIoTClient | 0:1f9b2707ec7d | 453 | MULTITREE_HANDLE childNode; |
AzureIoTClient | 0:1f9b2707ec7d | 454 | |
AzureIoTClient | 0:1f9b2707ec7d | 455 | /* Codes_SRS_JSON_DECODER_99_039:[ For array elements the multi tree node name shall be the string representation of the array index.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 456 | if (sprintf(arrayIndexStr, "%d", arrayIndex++) < 0) |
AzureIoTClient | 0:1f9b2707ec7d | 457 | { |
AzureIoTClient | 0:1f9b2707ec7d | 458 | result = JSON_DECODER_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 459 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 460 | } |
AzureIoTClient | 0:1f9b2707ec7d | 461 | /* Codes_SRS_JSON_DECODER_99_003:[ When a JSON element is decoded from the JSON object then a leaf shall be added to the MultiTree.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 462 | else if (MultiTree_AddChild(currentNode, arrayIndexStr, &childNode) != MULTITREE_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 463 | { |
AzureIoTClient | 0:1f9b2707ec7d | 464 | /* Codes_SRS_JSON_DECODER_99_038:[ If any MultiTree API fails, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_MULTITREE_FAILED.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 465 | result = JSON_DECODER_MULTITREE_FAILED; |
AzureIoTClient | 0:1f9b2707ec7d | 466 | } |
AzureIoTClient | 0:1f9b2707ec7d | 467 | else |
AzureIoTClient | 0:1f9b2707ec7d | 468 | { |
AzureIoTClient | 0:1f9b2707ec7d | 469 | char* valueEnd; |
AzureIoTClient | 0:1f9b2707ec7d | 470 | |
AzureIoTClient | 0:1f9b2707ec7d | 471 | /* decode each value */ |
AzureIoTClient | 0:1f9b2707ec7d | 472 | result = ParseValue(parserState, childNode, &stringBegin); |
AzureIoTClient | 0:1f9b2707ec7d | 473 | if (result != JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 474 | { |
AzureIoTClient | 0:1f9b2707ec7d | 475 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 476 | } |
AzureIoTClient | 0:1f9b2707ec7d | 477 | |
AzureIoTClient | 0:1f9b2707ec7d | 478 | if (stringBegin != NULL) |
AzureIoTClient | 0:1f9b2707ec7d | 479 | { |
AzureIoTClient | 0:1f9b2707ec7d | 480 | /* Codes_SRS_JSON_DECODER_99_005:[ The leaf node added in the multi tree shall have the value the string value of the JSON element as parsed from the JSON object.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 481 | if (MultiTree_SetValue(childNode, stringBegin) != MULTITREE_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 482 | { |
AzureIoTClient | 0:1f9b2707ec7d | 483 | /* Codes_SRS_JSON_DECODER_99_038:[ If any MultiTree API fails, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_MULTITREE_FAILED.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 484 | result = JSON_DECODER_MULTITREE_FAILED; |
AzureIoTClient | 0:1f9b2707ec7d | 485 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 486 | } |
AzureIoTClient | 0:1f9b2707ec7d | 487 | } |
AzureIoTClient | 0:1f9b2707ec7d | 488 | |
AzureIoTClient | 0:1f9b2707ec7d | 489 | valueEnd = parserState->json; |
AzureIoTClient | 0:1f9b2707ec7d | 490 | |
AzureIoTClient | 0:1f9b2707ec7d | 491 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 492 | jsonChar = *(parserState->json); |
AzureIoTClient | 0:1f9b2707ec7d | 493 | *valueEnd = 0; |
AzureIoTClient | 0:1f9b2707ec7d | 494 | |
AzureIoTClient | 0:1f9b2707ec7d | 495 | /* Codes_SRS_JSON_DECODER_99_027:[ Elements are separated by commas.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 496 | if (jsonChar == ',') |
AzureIoTClient | 0:1f9b2707ec7d | 497 | { |
AzureIoTClient | 0:1f9b2707ec7d | 498 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 499 | /* get the next value pair */ |
AzureIoTClient | 0:1f9b2707ec7d | 500 | } |
AzureIoTClient | 0:1f9b2707ec7d | 501 | else if (jsonChar == ']') |
AzureIoTClient | 0:1f9b2707ec7d | 502 | { |
AzureIoTClient | 0:1f9b2707ec7d | 503 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 504 | } |
AzureIoTClient | 0:1f9b2707ec7d | 505 | else |
AzureIoTClient | 0:1f9b2707ec7d | 506 | { |
AzureIoTClient | 0:1f9b2707ec7d | 507 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 508 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 509 | break; |
AzureIoTClient | 0:1f9b2707ec7d | 510 | } |
AzureIoTClient | 0:1f9b2707ec7d | 511 | } |
AzureIoTClient | 0:1f9b2707ec7d | 512 | } |
AzureIoTClient | 0:1f9b2707ec7d | 513 | |
AzureIoTClient | 0:1f9b2707ec7d | 514 | if (result != JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 515 | { |
AzureIoTClient | 0:1f9b2707ec7d | 516 | /* already have error */ |
AzureIoTClient | 0:1f9b2707ec7d | 517 | } |
AzureIoTClient | 0:1f9b2707ec7d | 518 | else |
AzureIoTClient | 0:1f9b2707ec7d | 519 | { |
AzureIoTClient | 0:1f9b2707ec7d | 520 | if (jsonChar != ']') |
AzureIoTClient | 0:1f9b2707ec7d | 521 | { |
AzureIoTClient | 0:1f9b2707ec7d | 522 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 523 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 524 | } |
AzureIoTClient | 0:1f9b2707ec7d | 525 | else |
AzureIoTClient | 0:1f9b2707ec7d | 526 | { |
AzureIoTClient | 0:1f9b2707ec7d | 527 | parserState->json++; |
AzureIoTClient | 0:1f9b2707ec7d | 528 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 529 | } |
AzureIoTClient | 0:1f9b2707ec7d | 530 | } |
AzureIoTClient | 0:1f9b2707ec7d | 531 | } |
AzureIoTClient | 0:1f9b2707ec7d | 532 | |
AzureIoTClient | 0:1f9b2707ec7d | 533 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 534 | } |
AzureIoTClient | 0:1f9b2707ec7d | 535 | |
AzureIoTClient | 0:1f9b2707ec7d | 536 | /* Codes_SRS_JSON_DECODER_99_012:[ A JSON text is a serialized object or array.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 537 | static JSON_DECODER_RESULT ParseObjectOrArray(PARSER_STATE* parserState, MULTITREE_HANDLE currentNode) |
AzureIoTClient | 0:1f9b2707ec7d | 538 | { |
AzureIoTClient | 0:1f9b2707ec7d | 539 | JSON_DECODER_RESULT result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 540 | |
AzureIoTClient | 0:1f9b2707ec7d | 541 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 542 | |
AzureIoTClient | 0:1f9b2707ec7d | 543 | if (*(parserState->json) == '{') |
AzureIoTClient | 0:1f9b2707ec7d | 544 | { |
AzureIoTClient | 0:1f9b2707ec7d | 545 | result = ParseObject(parserState, currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 546 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 547 | } |
AzureIoTClient | 0:1f9b2707ec7d | 548 | else if (*(parserState->json) == '[') |
AzureIoTClient | 0:1f9b2707ec7d | 549 | { |
AzureIoTClient | 0:1f9b2707ec7d | 550 | result = ParseArray(parserState, currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 551 | SkipWhiteSpaces(parserState); |
AzureIoTClient | 0:1f9b2707ec7d | 552 | } |
AzureIoTClient | 0:1f9b2707ec7d | 553 | else |
AzureIoTClient | 0:1f9b2707ec7d | 554 | { |
AzureIoTClient | 0:1f9b2707ec7d | 555 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 556 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 557 | } |
AzureIoTClient | 0:1f9b2707ec7d | 558 | |
AzureIoTClient | 0:1f9b2707ec7d | 559 | if ((result == JSON_DECODER_OK) && |
AzureIoTClient | 0:1f9b2707ec7d | 560 | (*(parserState->json) != '\0')) |
AzureIoTClient | 0:1f9b2707ec7d | 561 | { |
AzureIoTClient | 0:1f9b2707ec7d | 562 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 563 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 564 | } |
AzureIoTClient | 0:1f9b2707ec7d | 565 | |
AzureIoTClient | 0:1f9b2707ec7d | 566 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 567 | } |
AzureIoTClient | 0:1f9b2707ec7d | 568 | |
AzureIoTClient | 0:1f9b2707ec7d | 569 | static JSON_DECODER_RESULT ParseJSON(char* json, MULTITREE_HANDLE currentNode) |
AzureIoTClient | 0:1f9b2707ec7d | 570 | { |
AzureIoTClient | 0:1f9b2707ec7d | 571 | /* Codes_SRS_JSON_DECODER_99_009:[ On success, JSONDecoder_JSON_To_MultiTree shall return a handle to the multi tree it created in the multiTreeHandle argument and it shall return JSON_DECODER_OK.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 572 | PARSER_STATE parseState; |
AzureIoTClient | 0:1f9b2707ec7d | 573 | parseState.json = json; |
AzureIoTClient | 0:1f9b2707ec7d | 574 | return ParseObjectOrArray(&parseState, currentNode); |
AzureIoTClient | 0:1f9b2707ec7d | 575 | } |
AzureIoTClient | 0:1f9b2707ec7d | 576 | |
AzureIoTClient | 0:1f9b2707ec7d | 577 | JSON_DECODER_RESULT JSONDecoder_JSON_To_MultiTree(char* json, MULTITREE_HANDLE* multiTreeHandle) |
AzureIoTClient | 0:1f9b2707ec7d | 578 | { |
AzureIoTClient | 0:1f9b2707ec7d | 579 | JSON_DECODER_RESULT result; |
AzureIoTClient | 0:1f9b2707ec7d | 580 | |
AzureIoTClient | 0:1f9b2707ec7d | 581 | if ((json == NULL) || |
AzureIoTClient | 0:1f9b2707ec7d | 582 | (multiTreeHandle == NULL)) |
AzureIoTClient | 0:1f9b2707ec7d | 583 | { |
AzureIoTClient | 0:1f9b2707ec7d | 584 | /* Codes_SRS_JSON_DECODER_99_001:[ If any of the parameters passed to the JSONDecoder_JSON_To_MultiTree function is NULL then the function call shall return JSON_DECODER_INVALID_ARG.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 585 | result = JSON_DECODER_INVALID_ARG; |
AzureIoTClient | 0:1f9b2707ec7d | 586 | } |
AzureIoTClient | 0:1f9b2707ec7d | 587 | else if (*json == '\0') |
AzureIoTClient | 0:1f9b2707ec7d | 588 | { |
AzureIoTClient | 0:1f9b2707ec7d | 589 | /* Codes_SRS_JSON_DECODER_99_007:[ If parsing the JSON fails due to the JSON string being malformed, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_PARSE_ERROR.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 590 | result = JSON_DECODER_PARSE_ERROR; |
AzureIoTClient | 0:1f9b2707ec7d | 591 | } |
AzureIoTClient | 0:1f9b2707ec7d | 592 | else |
AzureIoTClient | 0:1f9b2707ec7d | 593 | { |
AzureIoTClient | 0:1f9b2707ec7d | 594 | /* Codes_SRS_JSON_DECODER_99_008:[ JSONDecoder_JSON_To_MultiTree shall create a multi tree based on the json string argument.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 595 | /* Codes_SRS_JSON_DECODER_99_002:[ JSONDecoder_JSON_To_MultiTree shall use the MultiTree APIs to create the multi tree and add leafs to the multi tree.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 596 | /* Codes_SRS_JSON_DECODER_99_009:[ On success, JSONDecoder_JSON_To_MultiTree shall return a handle to the multi tree it created in the multiTreeHandle argument and it shall return JSON_DECODER_OK.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 597 | *multiTreeHandle = MultiTree_Create(NOPCloneFunction, NoFreeFunction); |
AzureIoTClient | 0:1f9b2707ec7d | 598 | if (*multiTreeHandle == NULL) |
AzureIoTClient | 0:1f9b2707ec7d | 599 | { |
AzureIoTClient | 0:1f9b2707ec7d | 600 | /* Codes_SRS_JSON_DECODER_99_038:[ If any MultiTree API fails, JSONDecoder_JSON_To_MultiTree shall return JSON_DECODER_MULTITREE_FAILED.] */ |
AzureIoTClient | 0:1f9b2707ec7d | 601 | result = JSON_DECODER_MULTITREE_FAILED; |
AzureIoTClient | 0:1f9b2707ec7d | 602 | } |
AzureIoTClient | 0:1f9b2707ec7d | 603 | else |
AzureIoTClient | 0:1f9b2707ec7d | 604 | { |
AzureIoTClient | 0:1f9b2707ec7d | 605 | result = ParseJSON(json, *multiTreeHandle); |
AzureIoTClient | 0:1f9b2707ec7d | 606 | if (result != JSON_DECODER_OK) |
AzureIoTClient | 0:1f9b2707ec7d | 607 | { |
AzureIoTClient | 0:1f9b2707ec7d | 608 | MultiTree_Destroy(*multiTreeHandle); |
AzureIoTClient | 0:1f9b2707ec7d | 609 | } |
AzureIoTClient | 0:1f9b2707ec7d | 610 | } |
AzureIoTClient | 0:1f9b2707ec7d | 611 | } |
AzureIoTClient | 0:1f9b2707ec7d | 612 | |
AzureIoTClient | 0:1f9b2707ec7d | 613 | return result; |
AzureIoTClient | 0:1f9b2707ec7d | 614 | } |